Weft-replenishing apparatus for automatic looms worked with more than one shuttle.



E. EGLi. WEFT REPLENISHING APPARATUS FOR AUTOMATIC LQOMS WORKED WITHMORE THAN UN APFLICATlON FILED JAN.24I 191? 1,237,316. I Patented Aug.21,1917

2 SHEETS-SHEET I.

ESHUTTLEK E. EGLI. WEFT REPLENISHING APPARATUS FOR AUTOMATIC TOOMSWORKED WITH MORE TH AN ONE SHUTTLE.

PatentedAug. 21, 1917.

APPLICATION FILED IAN. 24.1917- 2 SHEETSSHEET 2.

UNITED STATES Ar ERNST EGLI, OF RllTI, SWITZERLAND, ASSIGNOR TO MASCHINENFAIBRIK RT J TI,

FORMERLY GASPAR I-IONEGGER, OF BUTT, SWITZERLAND.

WEFT-REPLENISHICNG APPARATUS To all whom it may concern:

Be it known that I, ERNST EGLI, a citizen of the Republic ofSwitzerland, residing at tion, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to letters of reference markedthereon, which form a part of this specification.

. It has already been proposed to construct a weft-replenishingapparatus for automatic looms, with two shuttles, a pendulat'ingweft-spool magazine containing two sets of spools of which one set isalways in a position of readiness to deliver a fresh spool forreplenishing the weft, and a spool-inserting hammer common to both setsof spools. In an apparatus of that kind the spool magazine is arrangedto be coupled by means of a rocking lever (fulcrumed on one side of thespool magazine and actuated from the shuttle-box changing apparatus) toa stationary stop when'the said lever is in one position, while when thesaid lever is in its other position, the said lever is in engagementwith a lever under the control of the weft-feeler, and then causes themagazine to swing out and thus allow the spool-in sorting hammer toenter the magazine through an aperture in the side of the latter.

The present invention which is based on the principle embodied in theproposed apparatus above referred to, has, for its object to provide animproved weft-replenishing apparatus which will enable more than twoshuttles to be replenished in an automatic loom. With this object, atleast two coaxial circular spool magazines mounted so ,as to be capableof rotating independently of each other and each, containing two sets ofspools, are provided. The outer spool magazine serves as a guide for thespools during the eiection of a spool from the two I inner sets 0spools, while theinner magazine leaves a way {Ir-lee: for theinsertinghammer to pass thr gh it, when a, spool FOR AUTOMATIC LOOMS'WORKED WITH MiG RE THZhlid' ONE: SHUTTLE.

Patented. Aug. 21, llfiili'.

, l Application filed January 24, 1917. Serial lilo. 144,265.

is being ejected from the two out-er sets of spools.

Since the path along which each spool that is to be inserted, has totravel before it reaches the position for insertion, is extremely short,the loom is able to work" at a high speed without causing any greatvibration of the spool magazines.

The shifting of the spool magazines takes place from a mid-positionwhich is not a position of readiness for inserting'a spool.

The manner in which this invention is to be performed will now be moreparticularly described with reference to the accompanying drawings whichillustrate by way of example a practical construction of apparatusaccording to this invention.

In these drawings Figures 1 and 2 are diagrammatic side elevations ofthe improved weft-replcnishing apparatus in two different positions.

Figs. 3, 4t and 5 are vertical crosssections of the spool magazinesthree difierent positions.

Fig. 6 is a view, partly in horizontal seotion and partly in plan ofcertain parts of the improved apparatus and Figs. *2 and 8 are sectionsres lines m-w and 9- 1, of Fig. 1.

In the constructional example shown, 1 and 2 are two coaxial circularspool mag..- zines mounted so as to be capable of rotating independentlyof each other; they contain each two sets of spools LII and H17, IVrespectively. The two sets of spools of each magazine are separated fromeach other by two partitions 3, Sbetween which a free space is left.

When the two spool magazines 1 and 2 are in their mid-position, that isto say, their position of rest, in which position no spool is beingejected, the free spaces above referred to are situated one over theother (Fig. l),so that the spool-inserting hammer 5 which is actuated inthe usual manner from the lay l, is able to the two magazines.

pectively on 6 is a bar jointed to the spool magazine are engagedvbyapin 9 on a red 10 which is moved'up and down themsual. way by theshuttle-changing apparatus. Each ,of the bars 6, 7, is formed on oneside with two lower parallel lugs 11 and 12 respectively, and on theother side with two upper parallel lugs 13 and 14 respectively.

According to the position of the bars 6, 7 as to height, a horizontalpin 15 on a lever 17 fulcrumed on an axle 16 is arranged to enterbetween the lugs 11 of the bar 7, or the lugs 12 of the bar 6; or ahorizontal pin 18 on a lever 20 fulcrumed on the axle 19 is arranged toenter between the lugs 13 of the bar 7 or the lugs 14 of the bar 6.

21' is an arm fixed on the axle 16 of lever 17, and 22 is an arm fixedon the axle 19 of lever 20.

These arms 21, 22 are connected by a link 23 so that the rocking oflever 20 entails an oppositely directed rocking oflever 17.

The upper end of rod 10 carries a sliding member 100 in which aplurality of studs 25 equal to the number of the compartments ordivisions of the shuttle boxes are slidably mounted. Springs 101 causethese studs to havea constant tendency to slide toward the left. Eachstud 25 is held in its right hand position by a pawl 25 which iscontrolled 'by the weft feeler or its magnet, so that the heads of allthe studs 25 form a plane in which an antifrict-ion roller 27 on abellcrank lever 26 can travel without shifting a hookedarm28 which isjointed to lever .20 and is hung l lever 26.

by means of a spring from Thehooked arm 28 is so arranged as to becapable of coming within range of lever 30 that is caused to rockcontinuously by a revolving cam 29 which is fixed on the lower shaft ofthe loom and makes one revolution at every second pick. ,g Now on a pawl25 being released by the -electric weft-feeler or its magnet (as here'-.inafter described),'the corresponding stud 25 will be pushed by itsspring toward the left, and thus'allow the lever 26 and roller '27 tomove likewise toward'the left, so that the hooked arm 28 is let downwithin range of the rocking lever 30, whereupon the operation ofchanging of the spool is commenced (provided that no further change ofshuttle takes place after the hooked arm 28 has been released and letdown), the

roller 27 being brought back against the head of a stud 25 which iscaused again to project, and the hooked arm 28 being lifted again. Thenwhen the shuttle box that corresponds to. the already released stud 25*,comes again into operation, the

, hooked arm is let down without any furth'er action of the weft-feeler,and thus the changing of the spool is started.

Thecorresponding released stud 25 which has started the changing of theweft spool, is pushed back each time by an extension 24 of the lever 17,whereupon the said stud is caught again by itspawl 25.

Each spool magazine has two set screws 31, 32 and 33, 34 for which astationary arm 35 serves as abutment.

Each bar 6, 7 has a pin 36, 37, adapted to engage stationary guides 38,39 for the purpose of locking the bars 6, 7.

40 is a spring having a constant tendency to pull the lever 20 over tothe left (Figs. 1 and 2). A set screw 41 on lever 17, and an abutment 42on lever 20 serve to limit the movement of these levers relatively toeach other,

The operation of the hereinbefore described improved apparatus is asfollows In the normal operation of a loom fitted with the improvedspool-changing apparatus, the latter is in the position shown in Fig. 1.The free spaces between the partitions 3 of the spool magazines 1 and 2are situated one over the other; the hammer 5' J the bars 6 and.7,according to the heights at -which the bars 6 and 7 have been set by theshuttle-changing apparatus. According to the said heights of the bars 6and 7, the pin 36 on bar 6 enters the locking guide 38, or the pin 37 onbar 7 enters the locking guide 39.

Fig. 2 shows the improved spool-changing apparatus in readiness for theinsertion of a spool from set III into the corresponding shuttle.

The weft-feeler has operated to'lower the hooked arm 28 into engagementwith the rocking lever 30, and 'the latter has pulled the disengagedlever 20 to the right, and has pulled to the left the lever 17 which hasbecome engaged in the lugs 12. The left hand rotation of spool magazine1 is limited by the screw-31 striking the abutment 35. The engagement ofpin 37in the looking guide 39 has locked the bar 7 and, through it, alsothe spool magazine 2; and the partitions 3 of the latter form a guidefor the spool that is being ejected from set III. After the ejection ofthe spool the lever 30 again releases the hooked arm 28,

and spring 40 pulls the lovers 17 and20, and

set IV. The magazine 2 is locked by the engagement of pin 37 in theguide 89. The spool ejected from set IV is being guided by thepartitions 3 of magazine 2. Screw 32 is up against abutment 35.

Fig. 4 shows the spool magazines rotated to the left by means of bar 7and lever 17 engaging lugs 11, in. a position of readiness for the eection of a spool from set I. Magazine 1 is locked by the engagement ofpin 36 in guide 38. The ejecting hammer is being guided by partitions 3of magazine 1. Screw 33 is up against abutment 35.

Fig. 5 shows the spoolmagazines rotated to the right by means of bar 7and lever 20 engaging lugs 13, in a position of readiness for theejection. of a spool from set XI.

Magazine 1 is locked by the engagement of pin 36 in guide 38. Thepartitions 3 of this magazine serve to guide the ejecting hammer 5.Screw 34 is up against abutment 35.

It is to be understood that the adjusting movements of the spoolmagazines are equal in extent for all the adjustments and arecomparatively very small, so that no occurrence of injurious 'vibrationis to be feared even when the apparatus is working at a high speed.

What I claim is 1. In a weft-replenishing apparatus for an automaticloom worked with more than one shuttle, the combination with apparatusfor changing the shuttles and inserting fresh spools in the shuttles, ofat least two circular spool magazineslocated coaxially one inside theother and mounted so as to be capable of rotating independently of eachother,-each of said magazines being adapted to contain two sets 0spools, and in each magazine two partitions inclosing a space betweenthem and locatedso'as to separate one set of spools from the other setoi spools in the said magazine, the space between the two partitions inthe outer magazine serv- 40 ing as a guide passageway through it foreach spool in its ejection from the inner magazine, while the spacebetween the two partitions in the inner magazine serves as a passage-wayfor the common hammer that saejects the spools from each magazine andinserts them into the shuttles.

2. In a weft-replenislflngapparatus for an automatic loom worked withmore than one shuttle, the-combination with apparatus for changing theshuttles and insertin fresh spools in the shuttles, of at least twocircular s ool magazines located coaxially one inside.

' t is other and mounted so as to be capable of rotating independentlyof each other, each of said magazines being adapted to contain twosetsof spools, and in each magazine two partitions inclosing a space betweenthem and located so as to separate one set of two subscribing witnesses.

spools from thmhther set of spools in the in the inner magazine servesas a passag may for the common hammer that e ects the spools from eachmagazine and inserts them into the shuttles, and means for imparting'lcft and right oscillation to each magazine as required, 'while leavingthe other magazine stationary, comprising two bars connected one to eachmagazine, coupled levers connected to said bars, a continuously rocieing member, and" rods] controlled by the shuttle-changing apparatus ofthe loom adapted to engage said bars as required.

3. In a weft-replenishing apparatus for an automatic loom worked withmore than one shuttle, the combination with apparatus for changing theshuttles and inserting fresh spools in the shuttles, of at least twocircular spool magazines located coairially one inside the other andmounted so as to be capable of rotating independently of each other,each of said magazines being adapted to contain two sets of spools, andin each magazine two partitions inclosing a space between them andlocated so as to "separate one set of spools from the other set of'spools in the said magazine, the space hetween the two partitions inthe outer magazine serving as a guide passage-way through it for eachspool in its ejection from the inner magazine, while the space betweenthe two partitions in the inner magazine serves as a passageway for thecommon hammer that,

ejects the spools from each magazine and in sorts them into theshuttles, and means for-- preparing and interrupting the changing ofaspool, comprising a'member adapted to be moved by the \veft-feelcr ofthe loom into position for preparing the changing of the spool. and alsoadapted to be again moved out of this preparing position by the actionof the shuttle-changing apparatus, and further also adapted to be movedafterward hack into the said preparing position with out necessitatingthe action of the shuttlechanging apparatus.

-In testimony whereof, I have signed my name to this specificationin,the presence of ERNST EGLI. Witnesses: v

HERMANN HUBER,

CARL Gunman.

